Did a phone screen, hour long first round, then 4 one hour interviews for a final round. Then...I never heard back. I understand that I may not have been the right fit for the role, but I spent a lot of time on these interviews (even took time off work). At LEAST have the courtesy to tell me "no" directly instead of ghosting.

I had two rounds of interview. The interview was well scheduled and the interviewers were very polite. I was not in the US and yet they made sure the interview could be scheduled without any inconvenience. They asked me about what I wanted to know about the role . They also spoke what technologies are used, what the team does and what they work on at DNAnexus. They seemed to love their work and i would definitely love to intern given the opportunity Now to the interview question!